Cylinder head refitting

[EddieStone]

Traditionally lapping involves a thick sheet of glass with a sheet of wet & dry paper on top (mum's coffee table when she was out) and twist the head on the paper until it's a uniform grey colour. Doesn't take long, and I usually do it every time I replace the head to make sure it's not warped at all.
To do it to the barrel means the engine has to be dropped.

[Davidsquaredson]

You want the sanding surface to be perfectly flat. A simple solution is a piece of window glass or go to a local charity shop and buy a mirror. You can get spray adhesive at a hardware or craft store to attach the sand paper to the glass. . Use 320 grit sand paper or finer. Use irregular motion or a figure 8. Periodically check. Stop when you see the surface a common colour.

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[Scooterdude]

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[garry inglis]

nice one

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[coaster]

Not 100%sure head is even blowing. Might just Lapp the head. Looking like it's a engine drop to remove barrel I take ?

If you remove the rear shock and the rubber bump stop the barrel should come off the studs ok with out dropping the engine.

[mr mugello]

Handy to know . Is this on a 200 block and barrel ?

[mr mugello]

Does the head gasket need to be coated both sides if using a sealer such like wellseal ?

[Scooterdude]

Does the head gasket need to be coated both sides if using a sealer such like wellseal ?

if your using a gasket you shouldn't need any sealant. If your not using a gasket put a smear on both surfaces and wait a minute or so for it to go tacky then slap um together..

I'd aim to not use a gasket if clearance allows it as your gasket will always be the weak link.

Sorry about the Jim Royal thing but I just couldn't help myself haha.

[dazblakey]

Is Cork best

[EddieStone]

Is Cork best

No.